APA
W.H.O.T.R.S. 794, . (1990). Educational imperatives for oral health personnel : change or decay. W.H.O., Geneva: .
Chicago
W.H.O.T.R.S. 794, . 1990. Educational imperatives for oral health personnel : change or decay. W.H.O., Geneva: .
Harvard
W.H.O.T.R.S. 794, . (1990). Educational imperatives for oral health personnel : change or decay. W.H.O., Geneva: .
MLA
W.H.O.T.R.S. 794, . Educational imperatives for oral health personnel : change or decay. W.H.O., Geneva: . 1990.